Lead pipe expanding tool on rod carrying impact sleeve for pounding tool into pipe end and for removing tool



June 9, 1959 M. W. PHILLIPS, SR. ETAL LEAD PIPE EXPANDING TOOL ON RODCARRYING IMPACT SLEEVE FOR POUNDING TOOL INTO PIPE END AND FOR REMOVINGTOOL Filed April 23, 1956 I I I I I Fie.2..

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INVENTOR. MONROE W. PHILLIPS, 5R. MONROI': W. Pmuws, JR.

ArmRA/EY United States Patent LEAD PIPE EXPANDING TOOL ON ROD CARRY- INGIMPACT SLEEVE FOR POUNDING TOOL INTO PIPE END AND FOR REMOVING TOOLMonroe W. Phillips, Sr., Miami, and Monroe W. Phillips, Jr., NorthMiami, Fla.

Application April 23, 1956, Serial No. 580,097

1 Claim. (Cl. 153--79) This invention relates to improvements inswedging tools and has particular reference to such a tool whereby toswedge a lead pipe into firm engagement with the inner Wall of arelatively larger non-ferrous ferrule.

Difiiculty has heretofore been experienced in such a swedging operationdue to the necessity of the mechanic employing a weighted cylindricalrod or other tool and then projecting the tool through the ferrule toengage the inserted end of the lead pipe to be connected and thenproceeds to pound or beat the lead pipe to progressively expand itoutwardly to a point where it has a firm engagement with the innersurface of the ferrule throughout its circumference, after which theexposed outer portion of the lead pipe and the lower end of the ferruleare leaded in a conventional manner. Such a procedure has been timeconsuming and expensive from the standpoint of labor costs.

The present invention contemplates an impact swedging tool embodying arigid elongated rod that is provided at its lower end with a taperedswedging head and an impact sleeve shiftable upon the rod and whereby topound the tapered head into swedging engagement with the end of a leadpipe that is disposed to a predetermined point into the ferrule andwhereby the lead pipe is quickly and easily expanded to firm engagementwith the ferrule in an accurate manner.

The invention contemplates a swedging tool of the character noted thatis provided with a detachable and replaceable tapered head preferablyformed of nonmetallic material and with a weighted impact sleeve that ismanually shifted to impact engagement with the head and with meansengageable by the sleeve to quickly and easily release the head from theswedged pipe.

Novel features of construction and operation of the device will be moreclearly apparent during the course of the following description,reference being had to the accompanying drawings wherein has beenillustrated a preferred form thereof.

In the drawings:

Figure l is a side elevation of a tool constructed in accordance withthe invention,

Figure 2 is an enlarged side elevation of a swedging tool illustratingthe manner of operation and with parts broken away and parts shown insection,

Figure 3 is a horizontal sectional view taken substantially on line 33of Figure l and Figure 4 is a vertical section taken substantially online 4-4 of Figure 1.

Referring specifically to the drawings, the numeral 5 designates anelongated cylindrical metallic rod having an upper and preferablyintegral head 6. The rod at its lower end is threaded as at 7 for thereception of clamping nuts 8 and 9. Disposed upon the lower end of therod 5 for engagement with a washer 10, is a cylindrical tapered head 11.The head 11 is preferably formed of hard wood, although not restrictedto any particular material. The head 11 is provided with a central bore12 adapted to freely receive the lower threaded end 7. The lower nut 9and a washer 12a serve as the clamping means for the head 11 to beclamped against the washer 10 and the stop nut 8. The head 11 maytherefore be removed and replaced in the event of wear or damage.

Shiftably disposed upon the rod 5 is an impact sleeve 13' having weldedto its lower end an enlarged weighted member 14, whereby to absorb thepounding action of the device in use. The sleeve 13 and its head 14 aremovable up and down upon the rod 5 by manual control and whereby toimpart a pounding action upon the nut 8 to be transmitted through thehead 11 during the swedging operation. The head 6 for the rod 5 providesa means whereby the sleeve may be forced upwardly to release the head 11from the swedged work. The inside diameter of the sleeve 13 is such asto permit of a freely sliding movement on the rod 5 without tendencytoward a lateral motion.

In the use of the device, a ferrule 15, usually of brass or bronze isengaged over the free end of a conventional lead pipe 16. The lead pipe16 is usually of smaller diameter than the inside diameter of theferrule 15 and necessitates that the end of the lead pipe 16 be swedgedoutwardly throughout its circumference to bind against the inner wall ofthe ferrule. With the pipe 16 engaged within the lower end of theferrule 15 a predetermined distance, the operator proceeds to insert thetool through the ferrule to engage the tapered head 11 into the open endof the pipe 16. When fully seated, the operator manually shifts thesleeve 13 up and down in a hammering action, progressively forcing thehead 11 downwardly into the pipe 16, causing the upper end of the pipe16 to be flared outwardly to a point where it is in full bindingengagement through its circumference upon the inner wall of the ferrule.After the swedging has taken place, an upward movement of the sleeve 13contacts the head 6 and releases the head 11 from its frictional bindingengagement in the pipe 16. The tool is then removed and the operatorproceeds to lead the connection around the outside of the ferrule andthe outside of the pipe 16 in a conventional manner. As before pointedout, it has been extremely difiicult and time consuming to otherwiseswedge the pipe 16 against the ferrule by tools or other devices now inuse, since it necessitated the hammering action through the ferrule inorder to reach the end of the pipe 16. In other instances, it has beencustomary to extend the pipe 16 all the way to the top of the ferrule 16and then to swedge the upper end. However, with this novel form of tool,a considerable saving is effected in the cost of lead pipe since theswedging action can be performed relatively close to the lower end ofthe ferrule. It is contemplated that the tool shall 'be formed invarious sizes in accordance with the recognized use of various sizes oflead pipe requiring a swedging to a coupling, a ferrule, flange platesor the like. The action is quick and positive and most effectivelyswedges the pipe with an equal pressure throughout its circumference. Asbefore stated the head 11 may be replaced from time to time by merelyremoving the nut 9 and its associated Washer 12a.

It will be apparent from the foregoing that a very novel form ofswedging tool has been provided. The device is simple in construction,is strong, durable and highly eifective for the purpose indicated.

It is to be understood that the invention is not limited to the precisearrangement shown, but that changes are contemplated as readily fallwithin the spirit of the invention as shall be determined by the scopeof the subjoined claim.

Having thus described our invention, what we claim as new and desire tosecure by Letters Patent are:

A swedging tool for swedging the open end of a lead pipe into bindingengagement with the inner wall of an elongated ferrule or coupling andwhereby the lead pipe is swedged outwardly at a point adjacent the lowerend of the ferrule, comprising an elongated rod having a length wherebyto extend entirely through the ferrule to the point of entry of the leadpipe and to project above the ferrule for a substantial distance, therod at its upper end being provided with a fixed enlarged head, the rodat its lower end being threaded and provided with a cylindricallytapered swedging head concentric thereto, means for detachablyconnecting the swedging head to the lower end of the rod, saidconnecting means comprising an upper clamping nut and a lower clampingnut, said swedging head being formed of hard wood and axially bored toslidably engage over said threaded end to be rigidly clamped between thenuts, and washers disposed between the nuts and the opposite end of theswedging head, an impact sleeve slidably positioned concentrically onsaid rod between said upper fixed head and lower swedging head, saidimpact sleeve at its lower end having a weighted enlarged wear resistingcollar and being shiftable toward and from said swedging head to imparta pounding action upon said connecting means coaxially of the ferruleand the lead pipe to progressively insert the swedging head into saidopen end and expand the end of the lead pipe into binding engagementwith the ferrule throughout its circumference, and said sleeve beingshiftable to pound said upper fixed head to remove said swedging headfrom the expanded pipe end.

References Cited in the file of this patent UNITED STATES PATENTS173,610 Flagg Feb. 15, 1876 424,800 Lessard Apr. 1, 1890 635,636 BaileyOct. 24, 1899 1,403,570 Rush Jan. 17, 1922 1,662,538 Richmond Mar. 13,1928 1,697,815 Hagstedt Jan. 1, 1929 1,873,294 Cosgrove Aug. 23, 19322,096,234 Erwin Oct. 19, 1937 2,252,274 Rossheirn Aug. 12, 1941 FOREIGNPATENTS 28,443 Great Britain Dec. 27, 1907

